t-Butyl Alcohol/H<sub>2</sub>O 혼합 용매에서 아크릴아미드의 분산 중합

이기창; 이성은; 송봉근; 이동주; Ki-Chang Lee; Seong-Eun Lee; Bong-keun Song; Dong-Joo Lee

Polymer(Korea), Vol.24, No.5, 629-637, September, 2000

Export Citation

t-Butyl Alcohol/H₂O 혼합 용매에서 아크릴아미드의 분산 중합

Dispersion Polymerization of Acrylamide in the Media of t-butyl Alcohol/H₂O Mixtures

이기창^†, 이성은, 송봉근¹, 이동주²

경상대학교 공과대학 고분자공학과 & 생산기술연구소
¹한국화학연구소 펄프ㆍ제지 연구실
²인하대학교 공과대학 고분자공학과

Ki-Chang Lee^†, Seong-Eun Lee, Bong-keun Song¹, and Dong-Joo Lee²

Department of Polyemr Sci. and Eng., & RITT, Gyeongsang National Unversity, Jinju 660-701, Korea
¹Pulp and Paper Research Lab., Korea Institute of Chemical Technology, P.O. BOX 107, Yusung, Taejon 305-600, Korea
²Department of Polymer Sci. and Eng., Inha University, Jncheon 402-751, Korea

E-mail:

초록

Hydroxypropyl cellulose와 ammonium persulfate를 각각 입자안정제와 개시제로 사용하여 t-butyl alcohol/H₂O 혼합 분산매에서 아크릴아미드의 분산중합을 다양한 중합 조건하에서 수행하여 생성되는 poly(acrylamide)(PAM)라텍스의 평균입자경, 라텍스 고분자의점도 평균분자량, 수용화 정도 등을 관찰하였다. 일반적으로 PAM 라텍스의 평균입자경은 개시제의 농도, 분산매 중 물의 농도, 중합 온도가 증가함에 따라, 또는 단량체의 농도, 입자안정제의 농도가 감소함에 따라 증가하였다. 라텍스상태로 얻어진 PAM 고분자의 점도평균분자량은 단량체의 농도, 입자 안정제의 shde, 분산매 중 물의 농도가 증가함에 따라, 또는 개시제의 농도, 중합 온도가 감소함에 따라 증가하였다. 본 연구에서 얻어진 PAM 라텍스는 0.1∼0.5㎛의 평균입자경과 470000∼2080000의 점도평균분자량을 나타내었으며 이들은 물에서 순간적으로 수용화되었다.

Dispersion polymerization of acrylamide in the media of t-butyl alcohol/H₂O mixtures at 30∼50℃ in the presence of hydroxypropyl cellulose and ammonium persulfate as steric stabilizer and initiator, respectively, was carried out. It was studied the effects of concentrations of initiator and steric stabilizer, amount of monomer, polymerization temperature, t-butyl alcohol/H₂O ratio, concentration of crosslinker, purification of monomer and nitrogen purge on the particle size of the resulting acrylamide latices and molecular weight of the latex-poly(acrylamide). In this study, poly(acrylamide) latices of 0.1∼0.5㎛ with 470000∼2080000 in M_v were prepared and the resulting PAM latics were all dissolved in water instantly.

Keywords:acrylamide;dispersion polymerization;average particle diameter;viscosity-average molecular weight;water content in dispersion medium

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[2] Boussouira B, Ricard A, J. Macromol. Sci.-Chem., A24(2), 137 (1987)

[3] Matsumoto A, Wakabayashi S, Oiwa M, J. Macromol. Sci.-Chem., A26(11), 1475 (1989)

[4] Corpart J, Selb J, Candau F, Polymer, 34(8), 3873 (1993)

[5] Stephen M, Keiji D, Joseph R, European Patent, 0669438A1 (1995)

[6] Shin J, Han S, Sohn C, Ow S, Mah S, TAPPI J., 80(11), 179 (1997)

[7] Vanderhoff JW, Wiley RM, U.S. Patent, 3,284,393 (1966)

[8] Schmitt JM, U.S. Patent, 4,022,731 (1977)

[9] Dimonie MV, Boghina CM, Marinescu NN, Marinescu MM, Cincu CI, Oprescu CG, Eur. Polym. J., 18, 639 (1982)

[10] Hunkeler D, Hamielec AE, Baade W, Polymer, 30, 127 (1989)

[11] Candau F, Zekhnini Z, Heatley F, Franta E, Colloid Polym. Sci., 264, 676 (1986)

[12] Dimonie M, Marinescu N, Vasilescu DS, J. Macromol. Sci.-Pure Appl. Chem., A29(3), 277 (1992)

[13] Lovell PA, El-Aasser MS, "Emulsion Polymerization and Emulsion Polymers," p. 724, John Wiley and Sons, New York, 1997 (1997)

[14] Almog Y, Reich S, Levy M, Br. Polym. J., 14, 1331 (1982)

[15] Tseng CM, Lu YY, El-Aasser MS, Vanderhoff JW, J. Polym. Sci. A: Polym. Chem., 24, 2995 (1986)

[16] Paine AJ, J. Polym. Sci. A: Polym. Chem., 28, 2485 (1990)

[17] Shen S, Sudol ED, El-Aasser MS, J. Polym. Sci. A: Polym. Chem., 31, 1393 (1993)

[18] Hu R, Dimonie VL, Sudol ED, Elaasser MS, J. Appl. Polym. Sci., 55(10), 1411 (1995)

[19] Tuncel A, Kahraman R, Piskin E, J. Appl. Polym. Sci., 50, 303 (1993)

[20] Saenz JM, Asua JM, J. Polym. Sci. A: Polym. Chem., 33(9), 1511 (1995)

[21] Saenz JM, Asua JM, Macromolecules, 31(16), 5215 (1998)

[22] Ober CK, Lok KP, Macromolecules, 20, 268 (1987)

[23] Awan MA, Dimonie VL, Elaasser MS, J. Polym. Sci. A: Polym. Chem., 34(13), 2633 (1996)

[24] Ray B, Mandal BM, J. Polym. Sci. A: Polym. Chem., 37(4), 493 (1999)

[25] Odian G, "Principles of Polymerization," p. 335, John Wiley and Sons, New York, 1991 (1991)

[26] Croucher MD, Winnik MA, "An Introduction to Polymer Colloids,", F. Candau and R.H. Ottewill, Eds., p. 35, Kluwer Academic Publishers, Netherland, 1990 (1990)

[27] Lu YY, El-Aasser MS, Vanderhoff JW, J. Polym. Sci. B: Polym. Phys., 26, 1187 (1988)

[28] Ray B, Mandal BM, Langmuir, 13(8), 2191 (1997)

[29] Barton AFM, "CRC Handbook of Solubility Parameters and Other Cohesion Parameters," p. 288, CRC Press, Florida, 1983 (1983)